A Question To Challenge

This is it....so the question was like👇👇👇

*So let's assume you saw a laptop of 97k.*
*You didn't have the cash. So you borrowed*
*50k from your Mom and 50k from your Dad*
*Which is equals to 100k in total.*

50k (mom) + 50k (dad) = 100k (total)

*You bought the laptop which left you with  3k change.*

100k (borrowed) + 97k (laptop) = 3k (change).

*You gave your Dad 1k and your Mom 1k*
*and kept the other 1k to yourself.*

*Now you owe your Mom 49k and your Dad 49k...*

Now:
        49k (Mom) + 49k (Dad) + 1k (Yours kept) = 99k

*Where is the missing 1k.......?????* 🤔🤔🤔

I know you are intelligent. solve and tell me.